(2S,3aS,6R,7aS)-6-Acetoxy-2-(tert-butyl-diphenyl-silanyloxymethyl)-octahydro-indole-1-carboxylic acid tert-butyl ester

(2S,3aS,6R,7aS)-6-Acetoxy-2-hydroxymethyl-octahydro-indole-1-carboxylic acid tert-butyl ester

methyl (2S,3aR,7aR)-1-benzyl-6-oxo-octahydroindole-2-carboxylate

methyl (2S,3aS,7aS)-1-benzyl-6-oxo-octahydroindole-2-carboxylate

(2S,3aS,7aS)-2-(tert-Butyl-diphenyl-silanyloxymethyl)-6-oxo-2,3,3a,6,7,7a-hexahydro-indole-1-carboxylic acid tert-butyl ester